Closer sagittal and meridional chart lines indicate more 'natural' out of focus areas.

Remember that MTF charts are good for comparing similar lenses, so comparing ones from the 14mm f2.8L and 300mm 2.8L won't tell you much at all, whilst comparing the EF14 2.8L with the EF14 2.8L II will show meaningful differences. Note that other manufacturers may have different ways of displaying such information that may or may not match up with the Canon figures.

Sample images

Product launch

The new Canon EF-S 18-55mm f/4-5.6 IS STM lens is nearly 20 percent smaller than the EF-S 18-55mm f/3.5-5.6 IS STM lens, without sacrificing image quality. Features of the lens include:

Compact-size, Standard Zoom Lens with High Image Quality
Lead Screw-type STM
Image Stabilization at up to 45 Stops of Shake Correction
Stylish Design
The Canon EF-S 18-55mm f/4-5.6 IS STM lens is scheduled to be available in early April 2017 for an estimated retail price of $249.99**.